the Barter idea

I have been thinking about this idea for quite a time. To put it in short:
An online place where people can exchange stuff, instead of sell or buy.

This is not a brand innovative idea. I could get sites with similar purpose by Googling. It's just they're not doing that well, from a design point of view. They could be improved by:

- Better visual
- Simple and Clear function organization and process flow
- Easier interaction (where AJAX tech should come in)
- Re-consider the exchanging process, what's the easiest way for doing that?
- Re-consider the user needs, what can you offer to encourage the exchanging behavior?

Well, to put it in short, it's all about better user experience.

I'm thinking about doing this on Facebook. Because:

- The network is already there, people don't need to create new connections. The existing connection could be used right away.
- People feel more secure and comfortable when exchanging with people who they already know
- The service would not worry about the physical exchanging process that much, as people could figure that out by themselves since they're trading with people who they already know

Well, to put it in short, it's all because of the network people already have on Facebook.

I'm right now looking for partners who would be interested in this idea and have Facebook application development skills.

This idea may fail, but that won't matter.